GST Calculator (Free Online)
Calculate GST amount, inclusive and exclusive prices instantly. Use this free GST calculator to add or remove GST with accurate results for invoices and billing.
How to calculate GST
GST calculation helps determine the tax amount included in a product or service price.
Enter Amount
Input the base price or total amount for GST calculation.
Select GST Rate
Choose the applicable GST percentage such as 5%, 12%, 18%, or 28%.
Get GST Value
View GST amount along with total or base value instantly.
Why use this tool?
Calculate GST inclusive and exclusive values instantly
Useful for invoicing and billing accuracy
Supports multiple GST rate slabs
Saves time on manual tax calculations
Ideal for businesses, freelancers, and accountants
Explore tools
View allBank Statement to CSV Converter (Free Online)
Convert PDF bank statements to CSV or Excel instantly. Extract transactions automatically and simplify bookkeeping, reconciliation, and financial reporting.
Profit Margin Calculator (Free Online)
Calculate profit margin, net profit, and profitability percentage instantly. Use this free calculator to analyze business performance and improve financial decisions.
NPV Calculator (Net Present Value Calculator)
Calculate Net Present Value (NPV) instantly to evaluate investment profitability, future cash flows, discount rates, and project returns for smarter financial decisions.
FAQs
What is a GST calculator?
How to calculate GST in India?
How does a GST calculator work?
What is the GST formula?
How to calculate GST inclusive amount?
How to calculate GST exclusive amount?
What is reverse GST calculation?
How to remove GST from a total amount?
How to add GST to a price?
What is 18% GST on an amount?
What are the current GST rates in India?
How to calculate GST in Excel?
How to use an online GST calculator?
Is there a free GST calculator available?
How to calculate GST for business invoices?
Automate document extraction workflows with confidence
BillsDeck combines AI-powered OCR, structured data extraction, and workflow automation to help teams process emails, PDFs, invoices, receipts, and business documents faster and more accurately.
See how BillsDeck automates document extraction and workflow processing—start your free 7-day trial.